Mapping of English Dialects in the U.S. - J. Gordon Wright
Not only are these maps elegant, but this is also an endlessly fun tool for thinking about why we talk differently. “Soda” or “pop”? “Gut course” or “crip course”? Do you stand “in line” or “on line”? I originally visited this because I wanted to see the comparison of “pin” and “pen,” a distinction my now-wife ridiculed me about ruthlessly when we first met in college. More than 100 comparisons here, but I never found that one.